# age = 25
# if age >= 20:
#     print('adult')
# elif age >= 15:
#     print('teenager')
# else:
#     print('kid')

# x = 60
# if x <= 50:
#     print('True')
# else:
#     print('False')

# s = input('birth: ')
# birth = int(s)
# if birth > 2000:
#     print('00后')
# else:
#     print('00前')

# height = input('height = ')
# weight = input('weight = ')

height = 1.75
weight = 80

bmi = (weight / (height ** 2))

if bmi < 18.5:
    print('过轻')
elif bmi <= 25:
    print('正常')
elif (bmi >= 25) & (bmi <= 28):
    print('过重')
elif (bmi >= 28) & (bmi <= 32):
    print('肥胖')
else:
    print('严重肥胖')

